Inking mechanism.



I. F. NILES.

INKING MECHANISM.

APPLICATION FILED APR. I. 1914.

WIT

INvEN- TonfI n@ A11-mr.,

Nassas 7 L f. muis. INKING MECHANISM. 'APPLICATION FILED APR. 7. |914.

2 SHEETS-SHEET 2.

Patented N ov.l 9, 1915..

UNITED STATES PATENT OFFICE.

IRVING F. NIIZES, 0F PLAINFIELD, NEW JERSEY, .ASSIG-NOR T0 :Rt- 'HOE NEWYORK, N. Y., A CORPORATION OF NEW YORK.

AND GO., 0F

INKING MECHANISM.

T 0 all whom t may Concern Specication of Letters Patent.

Be it known that I, IRVING F. Nuns, al

citizen of the United States, residing at Plainfield, county of Union,and State of New Jersey, have invented certain new and usefulImprovements in Inking Mechanism, fully described'and represented in thefollowing speciication and the accompanying drawings, forming a part .ofthe same.

This invention relates to certain improvements in inkng mechanism forrotary printing' machines, and has been designed particularly withreference to machines of the planographic or offset-type' although ifdesired it may be used in ot er relations, as, for instance, in highspeed sheet fed typographic presses.

Planographic or oifset machines and highspeed sheet fed machines ofother types are usually provided with mechanism whereby the form and theform rolls employedl for inking the form are tripped or thrown'out;

of printing relation with each other in the event of a sheet beingmissed, or a sheet being misregistered, this construction being adoptedto prevent the inking of the form when no sheet is present. In suchconstructions where the form rollers are tripped or thrown out'ofprinting relation with the form, it is desirable that such rollers andthe intermediate distributing cylinder and rollers employed be permittedto continue in operationv while in tripped position, to'prevent the inkfrom caking on the surfaces of the rolls. It is further desirable insuch constructions that the means employed for supplying the ink to thetrain of inking.,

rolls shall be thrown out of operation while the form rolls are trippedin order to prevent any undue accumulation of ink on the train of rolls.I v

It is one object of the present invention to provide a construction foruse in machines of the type referred to by which the means employed forsupplying ink to the train of,

inking rolls shall be thrownout of operation when the form rollsaremoved out of printing relation with the form, the form rolls and thetrain of distributing rolls continuing in operative relation with eachother.

It is a further object/of the invention to provide a constructionwhereby theink feeding means may be thrown into operation while thenking rolls are in tripped re- Patented Nov. 9, 1915.

lation with the form of the machine, so that-` after such rolls havebeen tripped and before they are again thrown into printing relationwith the form cylinder, they may be given a desired amount of'ink,-asfor instance in inking up prior to the beginning of a printing operationwhen the rollers are without ink, the operator can throw into operationthe ink-feeding means before the ink rolls are brought'into printingrelation with the form. i

It is a'further object of the invention to provide a simple 'and compactmechanism for effecting these results. y

For a full understanding of the invention, a detailed description f thesame willfnow be given in connection with the accompanying drawings, inwhich: v

Figure 1 is a side elevation of so much of a rotary planographicprinting machine as isnecessary for an understanding of the invention,the parts-being shown in position when the forni cylinder is beinginked;

is a side view with certain parts broken away, taken on the line of thearrow a of Fig. 1; and Fig. 5 is a detail on an enlarged scale showlngthe means, provided whereby the ink feeding means may be thrown into.

the form rolls are in tripped operation while position. v

Referring now to these. drawings, the mathe invention is a rotaryplanographic or4 l vibrating ductor 5 operated in any suitable manner asby a ca m 6 mounted on a stud 7 in the frame of the machine, this cam-co' operating with a cam roll 8 carriedby one .arm of a cam'levei` on arock-shaft 10 jourchine which has been selected to illustrate naled inthe frame of the machine, the ductor 5 being mounted in the other arm oflever 9.

The means employed for causing the form rollers and the form cylinder tobe thrown out of inking rel-ation with each other when a sheet ismissed, or for any other reason, may be of any suitable or desiredconstruction. In the machine illustrated, the form rolls are tripped orthrown out of printing relation with the form cylinder, the mechan nismfor effecting this including two-part frames on each side of themachine, each frame comprising sections 11, 12 pivoted on the ends ofthe shaft 13 of the distributing cylinder. The form rollers 4 aremounted so as to be lifted out of inking relation with the form cylinderby these frames when the latter are swung about their pivot. In theparticular construction illustrated, the lower members 3 of the train ofdistributing rollers are 'lifted with the form rollers, these membersbeing suitably carried in the swinging frames. The frames'are operatedto lift the rolls out of inking relation with the form in the machineillustrated from a sheet detector mechanism when a sheet is missed, andoperated' to bring the rolls into operative relation with the 'form whena sheet is again fed. The detector mechanism employed may be anysuitable one, and as such mechanism is well'known in the art and is notnecessary for an understanding of the invention, a showing thereof hasbeen omitted. The connect-ions from the detector mechanism to the framesmay be oit any suitable character. In the construction illustrated, suchconnections include a rocking cam plate 15 mounted on a stud 16 in theframe of the machine, this plate being rocked by an arm 17 connected tothe detector mechanism. This cam plate at each end is provided with camgrooves 17, in whichv work cam rolls 18 on arms 19 depending from theframes. When the cam plate is rocked about the stud by the arm 17 to theposition shown in Fig. 2, the frames 11, 12 are swung about their pivotsand act to liftthe form rolls out of inking relation with the form.,

The distributing cylinder, the form rollers and the intermediatedistributing rollers are constantly driven. The driving connections forthese various parts may be of any desired character. In the constructionillustrated, the distributing cylinder 2 is driven from the formcylinder 1 by means of an intermediate gear 20. The form rollers 4 andthe smaller distributing rolls 3" of the distributing train arefrictionally driven. In thc best constructions, the larger -rollers 3and 3 of the distributing train are gear-driven from the distributingcylinder 2 through intermediate gears 21.

The ink may be fed to the ductor roll from which it is delivered'to thetrain of distributing rolls in any suitable manner and from any suitablesource of supply. In the construction illustrated, there is provided anink fountain indicated at 22, in which rotates a fountain roll 23, whichin the preferred construction is intermittently driven. The connectionsemployed for driving' this roll may vary widely in construction. Theseconnections will, however, in accordance with the invention, includemeans whereby the rotation of the fountain rollwill be stopped when theform rollers have been tripped or thrown out of inking relation with theform cylinder,vso that the supply of ink to the ductor will at oncestop. In the particular machine illustrated, the fountain roll shaft 24carries a ratchet 25, with which coperates a pawl 26 on a pawl arm 27pivoted on the shaft 24 of the roll.

The other end of this pawl arm is provided with a stud 28 which Works inthe slotted end 29 of a crank arm 30. This crank arm may be operated torock the pawl arm in any suitable manner. In the constructionillustrated, the crank arm is driven from the distributing cylinder 2through a gear 31 suitably mounted on the stud 7 in the frame of themachine, this gear being driven from a pinion 32 onthe shaft 13 oit thedistributing cylinder, and provided with a crank pin 33, to which theend of the crank arm is secured.

The particular construction whereby the rotation of the fountain roll isstopped may be somewhat varied. In the best constructions, the drivingconnections to the roll will include a controller which acts to renderthe driving means inoperative. In the construction illustrated thecontroller causes the pawl arm 27 to assume a position in which the stud28 is held out of engagement with the ends of the slot in the crankarmBO, and the crank arms runs free von the stud.

The particular form of the construction may be varied. As shown, this iseffected by providing the pawl arm 27 with a pin 35 to which is secureda controller rod 36 having a spring 37, this spring taking between acollar 38 on the rod and a puppet 39. With this construction, the springnormally tends to cause the stud 28 to be held at the outer end of theslotted crank arm 29 and through the throw of the crank to rotate thefountain roll. When the form rollers are tripped out of inking relationwith the form,.the spring 37 is held from eX- erting its thrust on thepin 35 through connections which will now be described, theseconnections being preferably operated by the movement of the swingingframes when they are swung to lift the form rolls from the form. Mountedon the swinging frame 12 is a plate 40 having a notch or recess 41 inwhich takes apin 42 carried on one end of a lever 43 pivoted on a stud44. The upper end of this lever is provided with a lugI 45, in which isa pin 46 spring-seated against a spring 47. The puppet 39 beforereferred to is recessed, and in the recess is secured a pin 48 on whichis pivotally mounted a Vpawl 49 having a nose 50. The tail of the pawlis arranged to take into a recess 51 in the outer end of the rod 36before referred to. When the parts are in normal position as illustratedin Fig. l, the

pawl drops down out of the way of the rod.

When, however, the form rollers are tripped out of inking relation withthe form through the swinging of the frames, the swinging movement ofthe frame 12 causes the plate 40 to move to the left. This movement ofthe plate rocks the lever 43 on its pivot and causes the spring. pin 46to come in Contact with the nose 50 of the pawl, throwing the pawl up.At the next reciprocation of the rod 36, Ithe pawl takes into the recessin the end of the rod and holds the rod 36 against return movement. Thisprevents the spring from forcing the stud 28 into the end of the slottedcrank arm 29 which in its further movement rides freely on the stud, andthe feeding movement of the fountain roll is at once stopped.

In machines constructed in accordance with the invention where thelfountain roll is thrown out of operation by the tripping movement of theform rolls, means are specially provided whereby the fountain roll maybe thrownl into feeding relation with the inking rolls while the latterare in tripped position. These means may be somewhat varied but in theparticular construction illustrated the spring-seated pin 46, beforereferred to, which controls the movement of the pawl 49 is so arrangedthat it can be manually operated by an attendant. As illustrated in Fig.5, there is a nut 52 on the end of the pin, which may be grasped and thepin pulled down against the spring. It will be understood that the crankarm 30 is continuously operating and that even when theparts are inlocked posi-` tion, there is a slight movement of the pawl arm 27. Thismovement is provided so as to effect the release of the pawl 49,although it is not suficient to cause a feeding movement of the pawl 26.When the spring pin 46 is pulled or thrown down against the spring, thenext reciprocation of the crank moves the rod 36 sufficiently to freethe pawl 49, which drops down into the position shown in Fig. 5, the pinrestlng against the end of the nose 50 of the pawl. When the parts arein this position, the spring rod 36 is released and the parts arepermitted to partake of their normal ink-feeding movement. Thesemovements will continue until the tail of the pawl 49 is thrown up bythe operatorand the p in thereby caused to assume the position shown inFig. 2, which will occur as soon as the pawl is raised, ,the parts thenbeing locked in nonfeeding position.`

While the invention has been shown and described in relation with aplanographic or offset press, it is understood that it may be used ifdesired in other relations and it is not to be restricted to the precisedetails of construction shown, but that changes and variations may bemade in such construction without departing from the invention.

What is claimed is l. In an inking mechanism, the combination with aform cylinder and form rolls, of swinging frames operating tothrow theform rolls out of inking relation with the cylinder, a fountain roll,and means actuated by the movement of the frames for causing rotation ofthe fountain roll to stop when the frames are swung to throw out theform rolls. v

2. In an inking mechanism, the combination with a Iform cylinderand'form rolls, of swinging frames for lifting the rolls out of inkingrelation with the form, a fountainV roll, connections for driving the.roll, a spring operated controller rod, a pawl for locking the rod, aplate carried by one of the frames, anda pin operated by the plate foractuating the pawl.

3. In an inking mechanism, the combination with a form cylinder and formrolls, of a pair of form-roll lifting frames, a fountain roll,connections for driving the roll, a spring controller rod, a pawl forlocking the rod, a pin, connections from one of the frames for actuatingthe pin when the frames are operated to lift the rolls to move the pawlto locking position and permitting the pin to be depressed by hand torelease the pawl when the parts are in tripped position.

In testimony whereof, I have hereunto set my hand, in the presence oftwo subscribing witnesses.

IRVING F. NILES.

